EP0643447A2 - Spitze für das gegeneinander Schleifen von Kontakten - Google Patents

Spitze für das gegeneinander Schleifen von Kontakten Download PDF

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Publication number
EP0643447A2
EP0643447A2 EP94113063A EP94113063A EP0643447A2 EP 0643447 A2 EP0643447 A2 EP 0643447A2 EP 94113063 A EP94113063 A EP 94113063A EP 94113063 A EP94113063 A EP 94113063A EP 0643447 A2 EP0643447 A2 EP 0643447A2
Authority
EP
European Patent Office
Prior art keywords
contact elements
terminal end
contact
probe
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94113063A
Other languages
English (en)
French (fr)
Other versions
EP0643447A3 (de
Inventor
Kenneth J. C/O Minnesota Mining And Vidacovich
Philip M. C/O Minnesota Mining And Smith
Richard J. C/O Minnesota Mining And Scherer
William D. C/O Minnesota Mining Mckittrick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0643447A2 publication Critical patent/EP0643447A2/de
Publication of EP0643447A3 publication Critical patent/EP0643447A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart
    • H01R31/085—Short circuiting bus-strips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part

Definitions

  • Present invention relates to a terminal end for a probe used to interrupt a circuit, introduce a parallel or series circuit; as used on an overload protector, a test access device, a patch cord or other electronic device; between pairs of contact elements, particularly in a telecommunication cross connect block and in one aspect to a terminal end affording the separation and remating of spring biased contact elements to cause the same to wipe against each other upon insertion and removal of the probe.
  • Termination and distribution connectors have been in use in the communications industry for a long time to afford rapid connection of distribution wires to a pair of wires of an incoming or outgoing cable.
  • the systems are built for use with pairs of wires. Wire pairs are joined to at least one other pair to perfect the transmission. Also, it is very necessary that the splice between one pair and the other pair be readily accessible to disconnect, change or rearrange the connections and also to make series connections to the wire pairs for purposes of testing, protecting or otherwise monitoring each pair of lines. Therefore, the connections between the pairs of wires utilize contact members making electrical contact with each wire and then with themselves such that a pair of contacts join each pair of wires.
  • the support for the contacts afford the suitable support for incoming wires and the ready connection of outgoing or cross connect wires as illustrated in USA patent No. 4,789,354, assigned to the assignee of this invention.
  • This patent illustrates contacts having a first leg formed with a U-shaped contact element to make an insulation displacing electrical connection to a conductor of a wire and a resilient spring contact.
  • One form of the mating contact elements formed of appropriate conductive resilient spring-type material, provides a current path that can be broken by the separation of the two spring contact elements which are normally in contact between the pairs of U-slot spring reserve insulation displacing contacts.
  • a second form maintains a current path between the U-slot spring reserve contacts but allows a probe to be inserted between a pair of spring contacts.
  • the probe may have a circuit on the body, or the body may have the form of a printed circuit board such that the ultimate connection between the contacts and the body of the probe may be adapted to connect to the connected wire pairs in either parallel or series arrangement, but every connection or disconnection will result in the wiping of the opposed spring contact elements at the contact surface therebetween.
  • the present invention relates to a probe affording the breaking and making of an electrical connection between spring contacts of an electrical circuit and comprises a body having one terminal end adapted to engage a pair of resiliently mated electrical contacts of conductive material which are spring loaded normally into electrical contact.
  • the terminal end has a free end and means defining an oblique surface extending at an angle to the terminal end and adapted for engagement with one edge of one of said contact elements for forcing it laterally of the other contact element.
  • the probe has a third surface positioned between the oblique surface and the body for maintaining a contact element disposed at an angle to the other contact element after separation.
  • the terminal end can have a pair of oblique surfaces for engaging separate contact elements on two adjacent sets of electrical contact elements, and have the oblique surfaces disposed diagonally with respect to said terminal end and said body whereby the oblique surfaces contact alternate contacts of two sets of adjacent contact elements.
  • the terminal end has a first portion with opposite parallel surfaces terminating at a free end, and a second portion having a surface diverging from the free end, or oblique to the surfaces of the first portion, to engage a contact element and cause the transverse displacement thereof in relationship to the other contact element resulting in a wiping of the contact interface of the mating contact elements.
  • a probe according to the present invention may have a space separating the opposite surfaces of the first portion to afford registration of the terminal end in relationship to a pair of contacts, and the second portion comprises a pair of diverging surfaces and a similar space separating two parallel surfaces for engagement with the other contact elements of a pair of contacts to urge the same in opposite directions and out of the normal plane of contact.
  • the probe supporting the terminal end can have a circuit on the body, or the body may have the form of a printed circuit board such that the ultimate connection between the contacts and the body of the probe may be adapted to connect to the connected wire pairs in either parallel or series arrangement, but every connection or disconnection will result in the wiping of the spring contacts.
  • the body may support thin electrical circuit paths on at least one surface and adjacent to the terminal end for making electrical contact with said spring contacts upon insertion of the probe and separation of the contacts by said first and second portions of said terminal end.
  • Probes which word is used herein to describe protective devices, test devices, maintenance devices or patch cords for the telecommunications industry, have terminal ends for insertion into the distribution frames or cross connect frames as described in USA patent 4,789,354, the type of frame which supports pairs of contacts with walls insulatively separating the pairs of resilient spring loaded contacts for the wire pair as referred to herein.
  • a probe 11, illustrated herein as fragmentary, has a body 12 which may support an electrical circuit device such as the protection module of USA patent No. 4,741,711 or the multipolar switch of USA patent No. 4,682,838, or even an end of a patch cord as is well known in the art.
  • the body 12 is provided with at least a pair of circuit traces 14, 15, as shown in Fig. 1, with similar traces 16 on the opposite face, which traces terminate at one end in pads to afford connection to the spring contacts of a cross connect frame.
  • the body 12 of the probe 11 has a terminal end, generally designated 17, and hereinafter referred to as the tip, formed for inserting between two pairs of contacts to make contact between the contacts and the circuit traces 14, 15 and then separate the contacts or break the electrical connection therebetween.
  • the body of the probe is wider than the tip for engaging the free ends of the spring contacts to make a connection separate from the normal connection interface, wherein the tip is, at its widest area, only slightly wider than the spacing between adjacent contacts of a pair of contacts 25 and 26.
  • the contact elements of each contact are normally spring biased into connection and when breaking the connection it is highly desirable that a separate connection occurs in a location different than the normal electrical connection area. This is important because electrical arcing damages the two contact surfaces during connection or disconnection. When a device is removed from between the spring contacts the contacts are biased toward each other and will remake the connection. During the reconnection, it is beneficial if the two elements slide against each other to "wipe" across the electrical interface. This wiping action removes debris and thus cleans the contact faces at the interface. It is also beneficial to have the probe make electrical connection of the contact elements at a different point prior to disconnection at the normal interface to avoid arcing at the interface.
  • the probe 11 is generally injection molded and the tip 17 is formed integrally.
  • the tip comprises a first separation portion with opposite parallel surfaces 20 and 21 terminating at the free end, and a second separation portion, disposed laterally of the first portion, having a surface 22, 23 diverging from the free end of the tip, or oblique to the surfaces 20, 21 of the first portion, to engage a contact element and cause the transverse displacement thereof resulting in a wiping of the contact elements at the interface of the mating elements.
  • the oblique surface continues at an angle to the direction of insertion of the probe, substantially equal to the width of the contact element engaged and then has a surface parallel to the direction of insertion, connecting the oblique surface to the body, for maintaining the contact elements in the laterally displaced relationship. Separation of the contact elements depend on the transverse width of the second portion.
  • a probe 11 according to the present invention has a recess 24 defining a space separating the surfaces 20, 21 and defining additional surfaces parallel to the surfaces forming the first portion and surfaces opposite the oblique surfaces of the second portions defining the tip 17.
  • the recess 24 affords registration of the probe in relationship to pairs of contacts and/or a support surface to engage the insulative wall (not shown) of a support to allow the portions to cause the wiping of the contact elements of a pair of contacts 25 and 26 prior to separation and upon engagement.
  • Each of the pair of contacts 25 and 26 comprise two mating spring contact elements 28, 29 and 30, 31 respectively. As illustrated schematically in Fig.
  • the spring contact elements 28, 29, 30, 31 are formed with converging portions extending from a base, terminating at a bow defining an interface where the elements are normally in engagement and then diverging upwardly and converging again, affording a second connection area for connection to a circuit path on the probe and diverging therefrom affording a throat or entry area for receipt of the adjacent end of the body of a probe, i.e. a test tool or protective device or the like, between the ends of the contacts which affords separation at the normal electrical interface.
  • the probe is inserted between the pair of contacts 25 and 26 to engage the edges of the contact elements.
  • Figure 3 shows the contacts in somewhat perspective form so as to show the spacing of the contacts and the connection of the contact elements.
  • Figure 4 illustrates the probe with relation to the upper diverging portions of the contacts.
  • Figure 5 shows the probe positioned between the pair of contacts with the diverging portions 22 and 23 of the tip forcing the spring contact elements 29 and 31 transversely of their normal electrical interconnection position.
  • the contact elements remain in electrical connection but the bowed faces at the interface have moved transversely with respect to each other causing a wiping action at this area.
  • Figure 7 the end of the body 12 of the probe 11 is now entering the throat of the contact elements 28 and 29 causing the same to begin lateral separation but at the same time providing contact with the circuit traces 14, 15, and 16 as illustrated in these side views.
  • the probe has now reached its position wherein the spring contact elements 29 and 31 are shifted transversely and separated from the spring contact elements 28 and 30, respectively and the second connection area of the spring contacts have made electrical connection with the circuit paths 14, 15 and 16.
  • the contact elements in Figure 9 are maintained in the laterally displaced relationship even with the top of the contacts engaging the circuit traces 14, 15 and 16, by the parallel edges of the terminal end joining the oblique surfaces 22 and 23 with the body 12.
  • the probe can be used to break the circuit between pairs of wires, to interrupt the circuit.
  • Figure 11 discloses another embodiment of a probe 41 for use in separating the contacts of a pair of contacts by shifting one contact laterally of the other prior to separation of the contacts at their interface.
  • the probe 41 comprises a body 42 having a terminal end or tip 44, formed for insertion into a connector having an insulative body 45 including a wall 46, between two pairs of contacts 48, 49.
  • Each pair of contacts comprise two contact elements 50 and 51, spring loaded into engagement at an interface generally located at 52.
  • the probe terminal end is designed to straddle the wall 46 and separate two pair of contacts 48 and 49 by a pair of tips, each having a free end 55, a first portion 56 with opposite parallel surfaces terminating at the free end 55, and a second portion having a surface 57 diverging from the free end and oblique to the parallel surfaces to engage one contact element along an edge to cause the lateral displacement of the contact element in relationship to the other contact element resulting in a wiping of the contact elements at the interface 52 between mating contact elements.
  • the tips are positioned in a laterally offset relationship, or diagonally of the rectangular end of the body 42. This permits one tip to move a contact element 51 laterally of the other contact element 50, and the other tip to move a contact element 50 laterally of the other contact element 51.
  • a terminal end having a space separating the oblique surfaces permits the probe to have a surface reacting to the biasing force on one contact. This may also be accomplished by one surface of the terminal end being in contact with the wall 46, should only one pair of contact elements need to be separated.
  • the portion 56 of the terminal end 44 can serve as the reaction surface, engaging the wall 46 to permit the lateral movement of one contact element and eventual separation of the contact elements of one pair of contacts at the interface.
  • the body 42 of the probe 41 is wider than the terminal end, and the portions 56 and 57 are positioned to engage an edge of one contact.

Landscapes

  • Measuring Leads Or Probes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP94113063A 1993-08-23 1994-08-22 Spitze für das gegeneinander Schleifen von Kontakten. Withdrawn EP0643447A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/110,314 US5378164A (en) 1993-08-23 1993-08-23 Tip for forcing contacts to wipe against each other
US110314 1993-08-23

Publications (2)

Publication Number Publication Date
EP0643447A2 true EP0643447A2 (de) 1995-03-15
EP0643447A3 EP0643447A3 (de) 1996-07-17

Family

ID=22332354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113063A Withdrawn EP0643447A3 (de) 1993-08-23 1994-08-22 Spitze für das gegeneinander Schleifen von Kontakten.

Country Status (7)

Country Link
US (1) US5378164A (de)
EP (1) EP0643447A3 (de)
JP (1) JPH0778644A (de)
KR (1) KR950007193A (de)
CN (1) CN1100570A (de)
AU (1) AU677070B2 (de)
CA (1) CA2128825A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574359A (en) * 1994-12-16 1996-11-12 Methode Electronics, Inc. Removable tester contact
US5676570A (en) * 1996-03-15 1997-10-14 Minnesota Mining And Manufacturing Company "F" port interface connector
US5788524A (en) * 1996-07-22 1998-08-04 Itt Manufacturing Enterprises Inc. Test clip with standard interface
KR20140148387A (ko) 2012-03-23 2014-12-31 주식회사 아도반테스토 반도체 테스팅을 위한 측방향 구동식 프로브
DE102012103215B4 (de) * 2012-04-13 2015-08-20 Wago Verwaltungsgesellschaft Mbh Steckverbinderset
CN102684040B (zh) * 2012-05-15 2015-05-13 成都阿尔刚雷科技有限公司 防漏电方法及防漏电连接装置
US9678108B1 (en) 2014-02-06 2017-06-13 Advantest America, Inc. Methods to manufacture semiconductor probe tips
US9666966B2 (en) * 2014-07-01 2017-05-30 Te Connectivity Corporation Electrical connector having electrical contacts that engage mating contacts
KR101649050B1 (ko) * 2014-12-23 2016-08-17 두산중공업 주식회사 디지털 측정 장치 및 이를 이용한 측정 방법
JP2017117601A (ja) * 2015-12-22 2017-06-29 イリソ電子工業株式会社 コネクタ
JP6300976B1 (ja) * 2017-03-09 2018-03-28 三菱電機株式会社 カードエッジコネクタ

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Publication number Priority date Publication date Assignee Title
CH469373A (de) * 1968-02-13 1969-02-28 Oskar Woertz Inh H & O Woertz Elektrische Reihenklemme mit einem lösbar eingesteckten Trennstecker
SE387015B (sv) * 1971-07-15 1976-08-23 Siemens Ag Kontaktanordning
DE7323684U (de) * 1973-06-26 1973-09-27 Krone Gmbh Trennstecker für Trennleisten
US4106841A (en) * 1977-03-11 1978-08-15 Bunker Ramo Corporation Electrical connector for printed circuit boards
DE2804478C2 (de) * 1978-01-31 1982-11-25 Krone Gmbh, 1000 Berlin Elektrischer Klemmverbinder zur löt-, schraub- und abisolierfreien Herstellung eines Kontaktes an einem feststehenden Anschlußelement, insbesondere für die Fernmeldelinientechnik
GB8407948D0 (en) * 1984-03-28 1984-05-10 Hewlett Packard Ltd Electrical connectors
DE3446622A1 (de) * 1984-12-20 1986-06-26 Krone Gmbh, 1000 Berlin Steckereinsatz fuer stecker mit hoher steckhaeufigkeit
NZ216143A (en) * 1985-06-03 1989-04-26 Adc Telecommunications Inc Distribution frame wire connection module with insertable overvoltage protector
US4789354A (en) * 1987-09-14 1988-12-06 Minnesota Mining And Manufacturing Company Voice/data communication termination connector
US4975076A (en) * 1990-03-01 1990-12-04 Molex Incorporated Contact wiping electrical connector
US5152695A (en) * 1991-10-10 1992-10-06 Amp Incorporated Surface mount electrical connector
US5277607A (en) * 1993-01-15 1994-01-11 The Whitaker Corporation Electrical connector with shorting contacts which wipe against each other

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation

Also Published As

Publication number Publication date
CA2128825A1 (en) 1995-02-24
AU677070B2 (en) 1997-04-10
AU6877594A (en) 1995-03-02
KR950007193A (ko) 1995-03-21
JPH0778644A (ja) 1995-03-20
EP0643447A3 (de) 1996-07-17
CN1100570A (zh) 1995-03-22
US5378164A (en) 1995-01-03

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